scope:

1.1 This specification covers hafnium-alloyed niobium foil, sheet, strip, and plate.

Note-Committee B-10 has adopted "niobium" as the designation for Element 41, formerly named "columbium."

1.2 The material covered by this specification is R04295, niobium-base alloy containing approximately 10% hafnium and 1% titanium.

1.3 The following safety hazards caveat pertains only to the test methods portion, Section 15, of this Specification: This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.